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Pluto, Charon Details Trickle In

Happy Leap Year! New photos from Pluto and Charon continue to show enigmatic features.

More Indications Earth Is Unique

The late Carl Sagan might be stunned to see today's astronomers questioning Earth's "humdrum" status.

Hot Jupiters Exasperate Astronomers

Nothing has been more upsetting to comfortable theory than the discovery of hot Jupiters around other stars.

Are Paleomagnetic Measurements Reliable?

Dating of past geophysical history depends on magnetic measurements that may be in error.
The geyser plumes of Enceladus can be seen from long distances

Tiny Enceladus Beats Saturn in Plasma Output

An astonishing case of the tail wagging the dog: tiny moon is major source of plasma in Saturn's magnetosphere.

Density Can't Keep Saturn's Rings Old

Saturn's B ring is much less dense than previously thought, challenging attempts to keep it billions of years old.

Surprising Youth in the Solar System

Four solar system objects in the news look young, not billions of years old.

Earth's Geodynamo: An Energy Crisis

A new theory to maintain Earth's magnetic field looks like a case of special pleading to rescue a dogma.

Updates from Outer Planets

Let's review some of the latest news from missions to the outer planets.
Earthrise 2015 LRO

New Earthrise Is a Stunner

Take a look at this image from a lunar orbiter on the 47th anniversary of the historic Apollo 8 "Earthrise" photo.

Stuff Geologists Think They Know Till Tomorrow

The science of geology is like quicksand, ever shifting and not rock solid.

Want Salt on Your Ceres?

Those mysterious white spots on asteroid Ceres could be outcrops of salt. How did vast amounts of salt get out there?

Tilted Planets Throw Theories Off Kilter

An example of how data can be framed as success or failure, depending on the reporter's spin.

There's No Place Like Earth

A survey of known exoplanets finds no real estate as valuable as Earth.

New Earth Ocean Theory Is All Wet

Time to rewrite the textbooks again. Earth started out wet, scientists now claim, overturning decades of dogma.
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